to do things like this:
```js
it("should work", function(done) {
    driver.run(function*() {
      var sessionId, el, el2, text;
      sessionId = yield this.init(desiredCaps);
      yield this.get("http://mysite.com");
      yield this.elementById("someId").click();
      yield this.sleep(1.5);
      text = yield this.elementById("anotherThing").text();
      text.should.equal("What the text should be");
      yield this.quit();
    }).nodeify(done);    
});
```